Wave dampened waterbed

Abstract

A wave dampened waterbed mattress includes a bladder for containing water, a first horizontally extending baffle within the bladder having a horizontal extent corresponding generally to the horizontal extent of the top wall, and including flotation material for causing it to float against the top wall of the bladder is filled with water, and a second horizontally extending baffle within the bladder having a substantial horizontal extent and a density greater than water for causing it to lie against the bottom wall of the bladder. The first and second baffles are free floating, unanchored, and spaced relative to each other to leave a layer of unbaffled water between them. The upper baffle preferably includes a layer of beaded polyester fiber which is joined to a top layer of open cell convoluted foam. The bottom layer preferably includes several layers of unbeaded polyester fiber. The fiber is bonded and non-woven.

What is claimed is: 
     
       1. A wave dampened waterbed mattress comprising: a bladder for containing water, the bladder including a top wall, a bottom wall, and a side wall connecting the top and bottom walls;   a first horizontally extending baffle within the bladder, the first baffle having a horizontal extent corresponding generally to the horizontal extent of the top wall, and including means for causing it to float against the top wall of the bladder when the bladder is filled with water, the top surface of said baffle being defined by a convoluted layer of open cell foam;   a second horizontally extending baffle within the bladder, the second baffle having a substantial horizontal extent, and a density greater than water for causing it to lie against the bottom wall of the bladder, said baffle including at least one flexible fibrous layer;   the first and second baffles being free floating, unanchored, spaced and unattached relative to each other.   
     
     
       2. A wave dampened waterbed mattress as claimed in claim 1, wherein the first horizontally extending baffle includes at least one flexible fibrous layer. 
     
     
       3. A wave dampened waterbed mattress as claimed in claim 2 wherein the fibrous layer forms the bottom portion of the first baffle. 
     
     
       4. A wave dampened waterbed mattress as claimed in claim 1 wherein the first baffle includes a fibrous layer having flotation beads for causing buoyancy. 
     
     
       5. A wave dampened waterbed mattress as claimed in claim 1 wherein the fibrous layer constitutes the top surface of the second baffle. 
     
     
       6. A wave dampened waterbed mattress as claimed in claim 1 wherein the second baffle has a lesser horizontal extent than the first baffle in at least one dimension. 
     
     
       7. A wave dampened waterbed mattress as claimed in claim 1 wherein the second baffle has lesser horizontal extent than to the first baffle in both horizontal dimensions.